查询词典 uranium oxide

At the same time, the international market price of uranium soared in recent years all the way from eight in 2000 before a pound of uranium oxide rose to 10 U.S.

同时，国际市场铀价格近年来一路飙升，已从2000年前每磅八氧化三铀10美元上扬至去年7月每磅138美元，现在虽降到每磅44美元，但对跨国大型采矿企业来说仍有可观的利润空间，据测算铀的成本在每磅40美元左右。

It resumed its work at the plant near Isfahan, where uranium oxide is converted to uranium hexafluoride gas--but only under the watchful eyes of the IAEA inspectors.

它重新开始它的工作在植物近的 Isfahan，哪里铀氧化物是转换对铀 hexafluoride 瓦斯--除了只有在那之下注意的眼睛国际原子能总署检查员。

Mainly composed of silica, alumina, iron oxide, magnesium oxide and calcium oxide.

主要成分为氧化硅、氧化铝、氧化铁、氧化镁和氧化钙等。

Because of these advantages of the lead oxide, the lead oxide thin films are widely used in the transparent conductive oxide thin films, camera tube, photoconductive detector, electrode materials, gas sensor and many other fields.

本文综合论述了金属氧化物薄膜的一些主要的制备方法，氧化铅的基本性质以及在现代技术中的一些应用和最新的进展，首次采用直流反应磁控溅射方法制备了氧化铅薄膜，并研究了工艺参数对氧化铅薄膜的晶体结构，光学性质的影响。

In apatite system choose apatite, Magnesium oxide, zinc oxide and cerium oxide.

对磷灰石系统，以磷灰石、氧化镁、氧化锌、氧化铈为原料，进行4因素3水平正交实验，得到的最佳配方为磷灰石12%、MgO1%、ZnO1%、CeO20.5%，白度为70。

A catalyst for preparing propylene by dismutation reaction of the gas mixture containing ethylene and butylene is composed of the active components (5-30%) including tungsten oxide, molybdenum oxide and rhenium oxide and the carrier (more than 50 wt.%) which may be molecular sieve of Silicate-2,H, beta, SAPO, ZSM, or MCM type.

一种以含乙烯和丁烯的混合气歧化制丙烯催化剂，组成为ABC/D，活性组份总的重量担载量为5－30％；其中A为钨的氧化物，B为钼的氧化物；C为铼的氧化物；D为混合物载体并且主要为分子筛(重量含量大于等于50％)，包括Silicate－2，Y，Hβ，SAPO系列，ZSM系列，和MCM系列分子筛。

So anatase titanium oxide can separate electrum and cavity more effectively. At the same time, anatase has better photoactivity than rutile. Therefore it is significant to research how to prepare stable anatase titanium oxide film. On the other hand, titanium oxide absorbs ultraviolet light strongly (absorption edge is at 380nm) but visible light weakly.

在光催化方面TiO_2的激发必须在高能量的紫外光下才能进行，而到达地面的太阳能中只有3-4%的紫外光，人工紫外光又价格昂贵，所以将光激发红移到可见光区，可降低成本、节省能源。

Guards against the facture and the correlation stipulation based on the air pollution defines, the air pollutant may divide into four big projects, respectively be the gaseity pollutant (including sulfur oxide compound bucket carbon monoxide, nitrogen oxide compound, hydrocarbon, chlorine, gasified hydrogen, fluoride, chlorhydrocarbon and so on), the granular pollutant (including suspended particulate matter, golden bureau coal smoke, black smoke, acid fog, falls dust and so on), two pollutant (refers to pollutant to pass through photochemical reaction in air to have pollution again, including photochemistry fog, photochemistry high oxide compound and so on) and odor matter (including chlorine, hydrogen sulfide, curing methyl, sulfur alcohol type, methyl amines) and so on.

依据空气污染防制法及相关规定所定义，空气污染物可分为四大项目，分别为气状污染物（包括硫氧化物勺一氧化碳、氮氧化物、碳氢化合物、氯气、气化氢、氟化物、氯化烃等）、粒状污染物(包括悬浮微粒、金局煤烟、黑烟、酸雾、落尘等)、二次污染物（指污染物在空气中再经光化学反应而产生之污染，包括光化学雾、光化学性高氧化物等）及恶臭物质(包括氯气、硫化氢、硫化甲基、硫醇类、甲基胺类)等。

Lead-zinc double oxide has been developed. The activity of single lead oxide and zinc oxide has been studied.

用并流共沉淀法制备了氧化铅-氧化锌催化剂，发现焙烧温度、不同母体和母体配比对催化性能的影响规律。

Further oxidation treatment or reduction treatment of molybdenum dioxide nanowire arrays resulted in molybdenum trioxide nanowire arrays and molybdenum nanowire arrays. We fabricated WO3 nanowire arrays successfully by further oxidizing W18O49 nanowire arrays. Based on the vertical aligned zinc oxide nanowire arrays, we prepared the aligned zinc oxide/silicon core-shell nanowire arrays, zinc oxide nanowire-zinc silicate nanotube heterojunction arrays and zinc silicate nanotube arrays by adjusting the size of the templates as well as the annealing temperature.

我们通过氧化和还原处理二氧化钼纳米线阵列，分别合成了三氧化钼纳米线阵列和单质钼纳米线阵列；通过氧化W18O49纳米线阵列合成了三氧化钨纳米线阵列；利用氧化锌纳米线阵列作为模板，通过调节氧化锌纳米线模板的尺寸和退火温度，合成了氧化锌－硅同轴纳米线阵列、氧化锌纳米线－硅酸锌纳米管异质结阵列和硅酸锌纳米管阵列。

This matter overthrew all basises I learned from Sunday school .

这件事把我从周日学校学到的所有道理都颠覆了。

It's one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

这是一个老化的残酷讽刺：如果你想记住你最喜欢的餐馆，你应该更少吃到它们。